So 450D/1100D 12MP APS-C is around 31-32MP FF, 50D/500D 15MP APS-C is around 39MP FF, 7D/60D/600D/550D 18MP APS-C is around 46MP FF, etc.

I suspect its due to technology and processes for masking a certain size photosite along with wiring layout. The masks merely need to be extended. That is gross over simplification of the work involved, but it still must help from a manufacturing starting point.

Of course, the 16MP 1DS MK II with its 7.2 um photosites was the first, followed by the 1D MK III, so occasionally there is something totally new. A drop from 6.4 to 4.7um is pretty drastic for Canon on a 1Ds, but its been over three years, so they should be ready.

Canon Australia has recently reduced the RRP of the 5DmkII, while the RRP of the 7D has stayed steady. (The fact that the 7D has stayed steady might be construed to mean that the price adjustments are not being made to compensate for the strong Aussie Dollar.)

meinthai

After assuming we wouldn't see a 5D III until Q1 2012 I was planning on buying a 5D II TOMORROW. I actually bought plane tickets to Bangkok to buy it! (no camera shops where i live)

Making a trip to Mongolia in 2 weeks and wanted to upgrade my 5D I. But if the announcement is 'imminent' I find my self overcome with indecisiveness If the III is coming out soon I can live with the I for the next month, but if it's coming out in 8 months......... Rats!

Mr Administrator. Do you see your self changing your buying advice from "buy" to "hold" based on this [CR1] rumour? As I'm getting a plane in 6 hours I'd really appreicate your thoughts.

Either look to sell the Mark II soon (ish) or look to get a refund on the tickets...good luck. This is just a timing issue; there may be an announcement sometime later this month, or there may not be. The announcement will likely be keeping people salivating for months without any ability to buy the product until later.

I was thinking, however, that this is just about the exact right time for a 5D Mark II replacement to be in line with the lifespan of the original 5D before its replacement, down to the quarter (of a year).

Logged

Flake

Why would anyone want 36MP? It's not a huge increase in terms of resolution, however the files are larger, meaning that there's less of them per GB, they take proportionatly longer to transfer to the PC longer to open & to apply PP. On top of that noise is generally worse, and with that dynamic range takes a hit too. Lens flaws are made even worse, processing in camera takes longer.

For me 25MP with better dynamic range (lower noise), a digic V processor with its greater power used to give more fps (3.9 just isn't quick enough).

If you need more MP then either buy a medium format (your work will obviously fund this) or if it's landscape the stitch two images together to acheive the same!

quote author=Flake link=topic=1444.msg20198#msg20198 date=1312529755]Why would anyone want 36MP? It's not a huge increase in terms of resolution, however the files are larger, meaning that there's less of them per GB, they take proportionatly longer to transfer to the PC longer to open & to apply PP. On top of that noise is generally worse, and with that dynamic range takes a hit too. Lens flaws are made even worse, processing in camera takes longer.

For me 25MP with better dynamic range (lower noise), a digic V processor with its greater power used to give more fps (3.9 just isn't quick enough).If you need more MP then either buy a medium format (your work will obviously fund this) or if it's landscape the stitch two images together to acheive the same![/quote]

Sounds like someone urgently needs to consider upgrading their computer system, or at least parts of it.

I on the other hand want the highest mp count they can possibly cram into the beast, 65mp? Bring it on!

So 450D/1100D 12MP APS-C is around 31-32MP FF, 50D/500D 15MP APS-C is around 39MP FF, 7D/60D/600D/550D 18MP APS-C is around 46MP FF, etc.

As maths aren't my strongest asset: What is the formula to calculate FF sensor sizes based on a APS-C cam? Thank you so much for your help. Looking forward to read more exciting rumored news about an "imminent" 5Diii announcement.